{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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    "mimeType": "image/png",
    "size": 96561
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  "description": "The device has an electrical machine operable as a generator or motor. The machine has a flywheel coupled to the rotor via a variable ratio coupling and a control arrangement that holds the revolution rate of the machine acting as a generator with kinetic energy stored in the flywheel constant at…",
  "path": "/patents/1113150",
  "publishedAt": "2001-05-09T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J3/30",
    "PILLER GMBH [DE]"
  ],
  "textContent": "The device has an electrical machine operable as a generator or motor. The machine has a flywheel coupled to the rotor via a variable ratio coupling and a control arrangement that holds the revolution rate of the machine acting as a generator with kinetic energy stored in the flywheel constant at least over a range of flywheel speeds. The coupling arrangement has an unbranched variable ratio mechanical gearbox. The device has an electrical machine (2) with a rotor (3) operable as a generator or motor for connection to a load to be supplied with alternating current without the introduction of a variable input frequency inverter. The machine has a flywheel (7) coupled to the rotor via a variable ratio coupling and a coupling ratio control arrangement that holds the revolution rate of the machine acting as a generator with kinetic energy stored in the flywheel constant at least over a range of flywheel speeds. The coupling arrangement has an unbranched variable ratio mechanical gearbox (5).",
  "title": "No-break power supply with an electrical machine and a flywheel"
}